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MC felon
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 Posted: Sun Dec 17, 2006 10:10 am Post subject: saving txt |
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hi
how do i save strings to txts and open them back? |
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Ivan Novick
Guest
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| Posted: Sun Dec 17, 2006 10:10 am Post subject: Re: saving txt |
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MC felon wrote:
| Quote: | hi
how do i save strings to txts and open them back?
// write to file |
#include <iostream>
#include <fstream>
int main(int argc, char** argv)
{
std::string str1("Hello");
std::string str2("World");
std::ofstream f("test.txt");
if (!f)
{
std::cerr << "can't open file\n";
exit(1);
}
f << str1 << std::endl;
f << str2 << std::endl;
return 0;
}
===============================
// read from file
#include <iostream>
#include <fstream>
int main(int argc, char** argv)
{
std::ifstream f("test.txt");
if (!f)
{
std::cerr << "can't open file\n";
exit(1);
}
std::string str;
while(f >> str)
{
std::cout << str << std::endl;
}
return 0;
}
===============================
You may want to get a C++ reference book.
---
Ivan
http://www.0x4849.net |
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Jacek Dziedzic
Guest
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| Posted: Sun Dec 17, 2006 10:11 am Post subject: Re: saving txt |
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Ivan Novick wrote:
| Quote: | MC felon wrote:
hi
how do i save strings to txts and open them back?
// write to file
#include <iostream
#include <fstream
int main(int argc, char** argv)
{
std::string str1("Hello");
std::string str2("World");
std::ofstream f("test.txt");
if (!f)
{
std::cerr << "can't open file\n";
exit(1);
}
f << str1 << std::endl;
f << str2 << std::endl;
return 0;
}
===============================
// read from file
#include <iostream
#include <fstream
int main(int argc, char** argv)
{
std::ifstream f("test.txt");
if (!f)
{
std::cerr << "can't open file\n";
exit(1);
}
std::string str;
while(f >> str)
{
std::cout << str << std::endl;
}
return 0;
}
===============================
You may want to get a C++ reference book.
---
Ivan
http://www.0x4849.net
|
I'd also advise the OP to read the strings back using
std::getline(), because the >> operator splits the input
on whitespace.
HTH,
- J. |
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